.top {
  width: 100%;
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  padding: 10px 0;
  padding-left: 20px;
}
.top .logo {
  height: 50px;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-start;
}
.top .logo img {
  display: block;
  height: 100%;
}
.top .logo span {
  font-size: 18px;
  color: #ffffff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-weight: bold;
}
.top .github {
  width: 150px;
  height: 150px;
  background: #ffffff;
  position: absolute;
  right: -90px;
  top: -90px;
  font-size: 24px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transform: rotateZ(45deg);
  padding-bottom: 10px;
  transition: all 0.3s ease-in-out;
}
.top .github .anticon-github {
  transition: all 0.3s ease-in-out;
}
.top .github:hover {
  background: #4e4376;
}
.top .github:hover .anticon-github {
  color: #ffffff;
}
